Need for Speed: Underground Rivals

Helpful Momentum:
In the Nitrous Run Race, if your time is about two to four seconds
from expiring, aim the car at the gate and use all the nitrous remaining.
Even if the timer runs out, your car will keep going enough without the
gas and may pass the gate. If so, the timer will start again and your
nitrous tank will be refilled, allowing you to continue with the race.

Bonus Parts:
Complete the last race of a set with a gold medal.

Boss Cars:
In some race events that says Boss Race in the event description,
you can win that Boss's car by beating the event on Gold difficulty.
When you win a Boss car, it appears in the Pocket Garage and you can
race it in any game event.

More Boss Cars:
To win a free WRX sti or 1969 Doge Charger, beat the gold medal ranking
of the PRO boss battles.

The following cars are unlocked for purchase:
Volkswagen Golf GTI 2.0L  - $22,000
Ford Focus ZX3            - $18,000
Mazda Miata MX-5          - $19,000
Dodge Neon                - $17,000
Nissan Sentra SE-R SPEC-V - $21,000
Toyota Celica GT-S        - $23,000
Nissan 240SX              - $30,000
Mitsubishi Eclipse GSX    - $32,000
Mazda RX-7                - $34,000
Mazda RX-8                - $48,000
Pontiac GTO               - $46,000
Subaru WRX STi            - $46,000
1969 Dodge Charger        - $44,000
Toyota Supra              - $52,000
Nissan 350Z               - $54,000
Mitsubishi Lancer         - $51,000
Ford SVT Mustang Cobra R  - $56,000
1967 Ford Mustang         - $65,000
Nissan Skyline R34 GTR    - $70,000
Chevrolet Corvette Z06    - $72,000

 